Dodge had a habit of 'economizing' on the number of different harnesses they made for these trucks. Sometimes, I think they only made one, with provisions for every option they could conceivably come with... So, you will indeed have connectors, with nothing to plug in to.....

Trick is, did your truck have one of the packages that included the temp sensor. Need to find out. But, I HAVE seen trucks throw the code for the sensor, when they were never equipped with it......